A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5855-01-489-0278
NSN 6610-01-540-8521
NSN 6685-01-339-1902
NSN 6220-01-421-4091
NSN 5895-01-179-5121
NSN 5960-00-989-1251
NSN 6135-00-789-2865
NSN 5999-00-942-9927
NSN 5915-01-566-7954
NSN 5999-01-023-9181
NSN 6645-00-580-9605
NSN 5895-01-363-3140